Feed-regulator



PatentedApr. 2, 1889.

J. B. WHBATLBY. I FEED. REGULATOR.

I UNITED STATES f PATENT OEEICE.

JOHN E. wI-IEATLEY, oE DETROIT, MICHIGAN, AssIeNoR To AUGUST I-IEINE, oEsILvER CREEK, NEW YORK.

FEED-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 400,720, dated April 2,1889.

Application filed October 20, 1888.

To all whom it may concern:

Be it known that I, JOHN B. WHEATLEY, of Detroit, in the county of Wayneand State of Michigan, have invented a new and useful lmprovement inFeed-Regulators, of which the following is a specification.

This invention relates more particularly to an improvement in thefeed-hoppers of roller or grinding mills, and has for its object toprovide means whereby the material in the hopper is prevented fromoverflowing the hopper or clogging the feed-spout in case the materialis fed in excessive quantities to the hopper.

The invention consists of an overflow-passagecommunicating with theupper end of the feed-hopper and Aa distributing device whereby theVmaterial is allowed to escape from the hopper when it rises to acertain height and is uniformly distributed in the overflow-passage.

In the accompanying drawings, Figure l is a vertical cross-section of afeed-hopper provided with m`y improvement. Fig. 2 is a verticallongitudinal section thereof in line c Fig. l. Fig. 3 is a horizontalsection of the hopper.

Like letters of reference refer to like parts in the several figures.

A represents the inclosing-casin g of a rollermill, B the feed hoppersurmounting the same, and b the discharge-opening at the lower end ofthe hopper.

c is a feed-roller arranged in the dischargeopening b, and d anadjustable gate whereby the feed is regulated.

E represents an overflow-passage arranged on one side of the feed-hopperB and extending from the upper portion of the hopper to the lower endthereof. The passage E is preferably formed by a partition, e, arrangedwithin the hopper parallel with the adjacent side wall thereof, and thepassage communicates with the feed-hopper by means of au opening, f,arranged in saidpartition near the upper end thereof and extendingacross the entire width of the hopper. The lower end of theoverflow-passage E is o pen and terminates within the casing A at ornear the dischargeopening-b of the hopper.

F represents a distributing device arranged Serial No. 288,635. (Nomodel.)l

in the overfiow-openingf, and consisting, preferably, of a revolvingroller, as shown. This roller serves to distribute the material as itflows through the opening f and delivers the same upon thegrinding-roller below in a uniform stream.

Should an excessive quantity of material be accidentally fed into thehopper B by opening the slide in the feed-spout to an undue extent orfrom some other cause, the material' will rise in the hopper until itreaches the overflow opening f, when it will escape through said openinginto the passage E and pass from the latter into the casingA upon thegrinding-rollers.

By providing a distributing-roller in the overflow opening f thematerial passing through this opening is delivered to thegrinding-rollers in uniform sheets in the same manner as at thedischarge-opening b Yof the h opper, thereby effecting an even grindingof the material iiowing through the passage E.

The distributing-roller F is driven from the feed-roller c by a beltrunning around pulleys mounted on said rollers or by other means.

I claim as my inventiou l. The combination, with the feed-hopperprovided with a discharge-opening, of a partition forming anoverflow-passage communieating with the upper end of the feed-hopper anda distributing-roller whereby the material is uniformly discharged fromthe upper end of the feed-hopper into the overflow-passage,substantially as set forth.

2. The combination, with a feed-hopper provided with adischarge-opening, of a partition arranged within the hopper and formingan overflow-passage on one side of the hopper, an opening arranged nearthe upper end of said partition between the hopper and overflow-passage,and a distributing device arranged in said opening, substantially as setforth.

Witness my hand this 28th day of September, Isss.

JOHN Bv. VHEATLEY.

